Ernst philipp hinkel



(No Model.)'

B. 'P HINKEL.

ALBUM CLASP. N0. 310, 428. Patented Jam-6, 1885.

WITNESSES: INVENTOR:

ATTORNEYS.

UNITED STATES PATENT OFFICE.

ERNST PHILIP]? HINKEL, OF OFFENBAOH-ON-THE-MAIN, GERMANY.

ALBUM- CLASP.

SPECIPICATION forming part of Letters Patent No. 310,428, dated January 6, 1885.

Application filed September 23, 1854.

To all whom it may concern:

Be it known that I, ERNST PHILIPP HIN- KEL, a citizenof Germany, and residing at Offenbach-on-the-l\fain, Germany, have invented new and useful Improvements in Album-Clasps, of which the following is a specification.

My invention relates to certain improve ments in that class of album-clasps in which a grooved disk and slide are used for render ing the clasp extensible; and the invention consists in the construction and arrangement of parts as will be hereinafter fully described and claimed. I have provided a new and improved album-clasp which can be lengthened and adjusted to the thickness of the album.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure l is a face view of my improvedalbum-clasp, showing it applied. Fig. 2 is a longitudinal sectional elevation of the same on the line 00 m, Fig. 1. Fig. 3 is a cross sec tional view of the same on the line 1 y, Fig. 1. Fig. 4 is a side view of part of the same raised. Fig. 5 is a top plan view of the disk provided with the spiral groove. Fig. 6 is an edge view of the same. Fig. 7 is a plan view of the under side of the same. Fig. 8 is a plan view of the catch. Fig. 9 isan edge or side view of the same.

011 the free ends of the album-covers A B the metal pieces A B are secured, the latter being provided with a headed stud, C, on its middle.

To two balls, D, 011 the piece A, a cross piece, E, is hinged, from which a fork, F, projects, between the free ends of which a fork, G, projects, which is provided on its closed end with an eye, H, adapted to receive the headed stud O. The lower prong, G, of the fork G is longer than the upper prong, G", and in the inner surface of the longer lower prong a longitudinal groove, J, is formed.

Between the prongs of the fork G a disk, K, is held which is provided in its inner sur- (No model.)

face with a spiral groove, L, extending from the rim to the center.

To the under side of the disk K a springstrip, M, is pivoted transversely at the middle, part of the said spring resting in the groove J of the bottom prong, G, of the fork G, to guide the said disk in its movements. A screw or stud, N, projects from the upper prong, G of the fork G into the spiral groove L in the top of the disk K. A screw or stud, 0, projects from the top of the fork F into the spiral groove L of the disk. The edge of the disk K is milled. By turning the disk K in one direction the studs or screws N O are moved from each other and the fork Gis moved out of the fork F-that is, the clasp is lengthened. By reversing the movement of the disk the studs N O are moved toward each other, the fork G is drawn into the forkF, and the clasp is shortened. The clasp can thus be ad justed according to the thickness of the book or album.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. In an adjustable albunrclasp, the combination, with a hinged forked part, of a disk held in the same, and provided with a spiral groove, and of a sliding fork in the hinged part, studs projecting from the hinged part and the sliding part into the spiral groove of the disk, substantially as herein shown and described.

2. In an adjustable album-clasp, the combination, with the hinged part F, of the disk K, having a spiral groove, L, the sliding fork G, provided with a groove, J, in one prong, the spring-strip M on the under side of the disk, and of the studs 0 N, projecting from the parts F or G into the spiral groove L, substantially as herein shown and described.

In testimonywhcreof Ihave signed my name to this specification in the presence of two subscribing witnesses.

ERNST PHILIPP HINKEL.

Witnesses:

/ FRANZ IIASSLACHER, J osErri PATRICK. 

